Stevens Pass and Holden Village are both subject to a winter warning until 10 a.m. PST this morning, with up to four inches of snow expected to fall in the area. The NWS said drivers should be mindful of winter driving conditions on Highway 2 near Stevens Pass.

As much as 20 inches of snow is expected to fall in Alaska, while Idaho, Montana, Washington and Wyoming are all expected to be hit by considerable snowfall throughout Tuesday and overnight. The poor conditions are likely to cause difficult driving conditions and in some cases are expected to cause power outages.